Loral received all her grades for the semester (in parentheses) along with the weight for each grade, shown below. what is her f inal grade? weight 45% = 3 tests (80%, 75%, 92%) 25% = final (88%) 15% = paper (91%) 15% = 2 oral quizzes each worth 25 points (22, 19)
1 answer:
For 45%: (80 + 75 + 92) / 3 = 82.33% (0.8233) * (0.45) = 0.370485 For 25%: (0.88) * (0.25) = 0.22 For 15%: (0.91) * (0.15) = 0.1365 For 15%: ((22/25) + (19/25)) / (2) = 0.82 (0.82) * (0.15) = 0.123 Adding we have: (0.370485) + (0.22) + (0.1365) + (0.123) = 0.849985 The final note is: 0.849985 * 100 = 84.9985% Answer: her final grade is: 84.9985%
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